The filter replaced my inner filter in my 200L aquarium. As recommended, I have operated both filters in parallel for a while. The (optical) filter performance is very good. A water test I have not done my fish but it goes just fine. The noise level is absolutely suitable living room. For purification, the head can be shut off, and the filter containers are removed. Additional valves to shut off are not required! The priming aid is indeed difficult, but works reliably. At this point you should consider when choosing the filter. What good is the best quality product, if the pump will not want to get started? The filter material is included, but can of course be adjusted at will. The price-performance ratio is very good.
